Ball-operated control device for electronic circuits



FIG. 1 is a perspective view of a ball-operated control device forelectronic circuits showing my new design;

FIG. 2 is a top plan view of the device;

FIG. 3 is a bottom plan view of the device;

FIG. 4 is a side elevational view of the device;

FIG. 5 is a front elevational view of the device; and,

FIG. 6 is a rear elevational view of the device.

The ornamental design for a ball-operated control device for electroniccircuits, as shown and described.